/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.io.hbase;



import org.apache.hadoop.hbase.client.Scan;

import org.apache.hadoop.hbase.protobuf.ProtobufUtil;

import org.apache.hadoop.hbase.protobuf.generated.ClientProtos;



import java.io.IOException;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import java.io.Serializable;



/** This is just a wrapper class to serialize HBase {@link Scan} using Protobuf. */

class SerializableScan implements Serializable {

  private transient Scan scan;



  public SerializableScan() {}



  public SerializableScan(Scan scan) {

    if (scan == null) {

      throw new NullPointerException("Scan must not be null.");

    }

    this.scan = scan;

  }



  private void writeObject(ObjectOutputStream out) throws IOException {

    ProtobufUtil.toScan(scan).writeDelimitedTo(out);

  }



  private void readObject(ObjectInputStream in) throws IOException {

    scan = ProtobufUtil.toScan(ClientProtos.Scan.parseDelimitedFrom(in));

  }



  public Scan get() {

    return scan;

  }

}